Tipsaveric definitely takes the cake, he is not a challenger to Federer, Nadal, Djoko, Murray, Tsonga, Berdych, Ferrer, Del Po;
Really beats me how he made it so far up the rankings :/

Because he was usually beating those bellow him obviously. If he could successfully challenge Fed/Nole/Nadal/Murray/etc, he would've been fighting for #1.

__________________“There’s so many athletes, tennis players around the world,” he continued, trying to put his life into some kind of perspective, “they want to be the best in what they do. They want to succeed. Many of them, they don’t succeed in the end. I’m fortunate to have this opportunity and succeed.”